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briggs

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russell
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2018/04/12 19:08:18 (permalink)
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briggs

I have a lawn mower with a briggs & Stratton series 5 motor it was running perfect while I was mowing then I shut it off and it would not restart . It is getting fuel but there appears to be no spark . Any help would be greatly appreciated .

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    Roy
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    Re: briggs 2018/04/12 19:33:43 (permalink)
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    Model and type number might help with a diagnosis. Will it start once it has cooled off?
    russell
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    Re: briggs 2018/04/13 08:06:42 (permalink)
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    does not start when it cools off and model is 10T502 type 0457B1
    Roy
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    Re: briggs 2018/04/13 12:01:24 (permalink)
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    Did you try changing the spark plug?
    russell
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    Re: briggs 2018/04/13 13:17:56 (permalink)
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    have already changed spark plug, it started this morning , did some mowing  stopped to eat lunch, now will not start again
    Wilber
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    Re: briggs 2018/04/13 13:45:30 (permalink)
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    It might be getting flooded by vacuum drawing gas into carb when shut off, but clears up over night and starts the next day. ??
     
    AVB
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    Re: briggs 2018/04/13 14:37:50 (permalink)
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    Wilber
    It might be getting flooded by vacuum drawing gas into carb when shut off, but clears up over night and starts the next day. ??

    Not possible with this carburetor design. It more likely a failing ignition coil's electronics (heat soaking). Only replacement of entire ignition coil is possible if it is the electronics.
    russell
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    Re: briggs 2018/04/14 04:38:34 (permalink)
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    I HAVE NOTICED IT IS WET AROUND THE CARB & FUEL TANK,AND I CAN SMELL GAS. HOW CAN I FIX THIS VACUUM  ISSUE
    AVB
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    Re: briggs 2018/04/14 08:07:37 (permalink)
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    First Russell please don't yell. (all caps is considering yelling).
     
    Please get off the idea of a vacuum as this engine setup with a fuel tank mounted carburetor and the venting done by the fuel caps prevents this. The only vacuum going on is when the engine is pulling in fuel and air mix through the carburetor ventura which operates the fuel pump diaphragm
     
    As for the fuel leakage there can be several possibilities. There is a gasket and fuel pump diaphragm between the carburetor and the fuel tank that can goes bad, fuel can be leaking, the tank itself, or even the carburetor can warped from someone over tightening the the screws.
     
    Now verify it is ignition problem or carburetion problem when the engine will not start remove the spark plug and squirt a little gas into the engine via the plug hole, replace the plug, and try starting. If it starts then it is a fuel supply problem; otherwise, it is ignition. Now if the engine has a lot hours on it then it could valve related but this a fairly new on the market.
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